WO2015176150A1 - Chave óptica compacta baseada em um cristal fotônico bidimensional com dobramento de 120 graus - Google Patents
Chave óptica compacta baseada em um cristal fotônico bidimensional com dobramento de 120 graus Download PDFInfo
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- WO2015176150A1 WO2015176150A1 PCT/BR2015/050061 BR2015050061W WO2015176150A1 WO 2015176150 A1 WO2015176150 A1 WO 2015176150A1 BR 2015050061 W BR2015050061 W BR 2015050061W WO 2015176150 A1 WO2015176150 A1 WO 2015176150A1
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- photonic crystal
- dimensional photonic
- key based
- electromagnetic signal
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- 239000004038 photonic crystal Substances 0.000 title claims abstract description 43
- 230000003287 optical effect Effects 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 36
- 230000007547 defect Effects 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 claims abstract description 3
- 238000003780 insertion Methods 0.000 claims description 14
- 230000037431 insertion Effects 0.000 claims description 14
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- 238000013461 design Methods 0.000 abstract description 3
- 230000005284 excitation Effects 0.000 abstract description 2
- 239000013078 crystal Substances 0.000 description 22
- 230000007704 transition Effects 0.000 description 9
- 230000035699 permeability Effects 0.000 description 8
- 238000012546 transfer Methods 0.000 description 8
- 238000006842 Henry reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
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- 239000000835 fiber Substances 0.000 description 3
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
- G02F1/31—Digital deflection, i.e. optical switching
- G02F1/313—Digital deflection, i.e. optical switching in an optical waveguide structure
- G02F1/3132—Digital deflection, i.e. optical switching in an optical waveguide structure of directional coupler type
- G02F1/3133—Digital deflection, i.e. optical switching in an optical waveguide structure of directional coupler type the optical waveguides being made of semiconducting materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/1225—Basic optical elements, e.g. light-guiding paths comprising photonic band-gap structures or photonic lattices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
- G02B6/3564—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
- G02B6/3568—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details characterised by the actuating force
- G02B6/3572—Magnetic force
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/015—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on semiconductor elements having potential barriers, e.g. having a PN or PIN junction
- G02F1/025—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on semiconductor elements having potential barriers, e.g. having a PN or PIN junction in an optical waveguide structure
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect
- G02F1/095—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
- G02F1/31—Digital deflection, i.e. optical switching
- G02F1/313—Digital deflection, i.e. optical switching in an optical waveguide structure
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/06—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 integrated waveguide
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2202/00—Materials and properties
- G02F2202/32—Photonic crystals
Definitions
- the present invention relates to a compact optical key based on a 120 degree bending two-dimensional photonic crystal. In integrated optical systems, it can be used mainly to control the propagation of an electromagnetic signal along a channel, allowing or interrupting its passage (switching function).
- Photonic crystals are structures in which periodic modulation of the electrical permittivity or magnetic permeability of the constituent materials occurs. This periodicity is related to the origin of a forbidden frequency band in the band diagram of these structures, also known as photonic band gap.
- Electromagnetic waves often in this range cannot propagate along the crystal and are fully reflected by it.
- the creation of defects in the periodic crystal structure, in line with the existence of the photonic band gap, is associated with the working principle of most photonic crystal based devices.
- switches play a key role. They have two operating states, which are: the off state, where there is a high isolation between the input and output ports of the switch, with consequent impediment to the transmission of an electromagnetic signal; On, in which an electromagnetic signal is transmitted from the input to the output port, with low insertion losses.
- the transition between the two states of operation on photonic crystal based switches is controlled by modifying some
- the switch referred to in CN101571657 is based on a two-dimensional photonic crystal composed of a triangular network of holes inserted into a material with nonlinear properties. Defects in the crystal structure give rise to two waveguides (in and out) and a resonant cavity.
- the refractive index of the material in question can be modified from the incidence of an optical control signal, a phenomenon known as the Kerr effect. The state the switch is in (on or off) depends on the strength of this control signal.
- the switch described in US2005249455 is based on an optical waveguide whose core is formed by a two-dimensional photonic crystal.
- the refractive index of the materials that make up the crystal can be modified by injecting a light signal or by applying an electric current between two electrodes present in the structure.
- the transition between the operating states of the device is controlled by adjusting the refractive index value of the materials that make up the photonic crystal in question.
- JP2003215646 Between two optical waveguides is inserted an element responsible for the switching (transition between states). This element is based on a two-dimensional photonic crystal and a pair of electrodes. The state in which the switch operates (on or off) is determined by the value of the refractive index of the materials that make up the crystal, which in turn is dependent on the value of an electrical voltage applied between the electrodes.
- the optical key referred to in JP2006184618 is based on a two-dimensional photonic crystal composed of a material whose refractive index varies with temperature. The control of
- the temperature the crystal is in is responsible for determining the state the key is in (on or off).
- the present invention is based on a two-dimensional photonic crystal composed of a triangular network of holes inserted in a magneto-optical material.
- the two operating states of the switch are defined by the value of the magnetizing magnetic field of the magneto-optical material, which in turn is equal to 0 in the off state and equal to H 0 in the on state,
- Typical waveguides in the optical frequency range are optical fibers.
- the bending angle to which an optical fiber may be subjected is very restricted, which is one of the main difficulties to be circumvented in fiber optic based circuits.
- Their operation is based on the principle of total internal reflection and therefore cannot be sharply bent, which compromises their use in circuits that require sudden changes in the direction of propagation of electromagnetic signals.
- Photonic crystal-based waveguides are generally constructed from the insertion of linear defects in the crystal structure. Because of the photonic band gap associated with the crystal structure adjacent to the defect, electromagnetic signals often within this range are confined within the linear defect and propagate along it.
- the switch referred to in this report incorporates, in its structure, a 120 degree bending of the propagation direction of an electromagnetic signal, providing greater flexibility in system design.
- the magnetization circuit of the structure is simplified given the fact that the device operates with uniform magnetization in the on state. Because of this, an electromagnet can be used to fulfill this function.
- the intensity of the magnetic field generated by the electromagnet is proportional! to the intensity of an electric current running through it.
- the switch in question is composed of a two-dimensional photonic crystal, based on a triangular network of holes inserted into a material with magneto-optical properties.
- the crystal structure two types of defects are inserted, namely:
- the key can be in two states, namely:
- the switch has the following characteristics:
- ⁇ is the electrical permittivity of the material (in Farads per meter);
- ⁇ 0 is the electrical permittivity of free space (in Farads per meter);
- ⁇ 0 is the free space magnetic permeability (in Henrys per meter);
- gr is a parameter dependent on the intensity of the applied external DC magnetic field.
- FIGS 1a and 1b show, in simplified form, the key operating in the on and off states, respectively.
- Figures 2a and 2b show the eigenvectors V and V 2 , respectively, which are associated with two of the six dipole modes in the unmagnetized resonator, with resonant frequency ⁇ 0 .
- Figure 2c shows the V + and V " modes on the unmagnetized resonator, which rotate in opposite directions and have the same resonant frequency ⁇ 0.
- Figure 2d shows the V m + and V m " modes on the magnetized resonator, which rotate in opposite directions and have resonant frequencies ⁇ + and ⁇ ' , respectively.
- Figure 3 shows a top view of the device operating in the on state.
- the photonic crystal on which the device is based, the rectilinear waveguides 301 and 302 (input and output, respectively), the resonant cavity on which the dipole modes and the component are excited are presented.
- Figure 5 shows the transmission curves of the switch operating in the on and off states.
- [051 J V modes may be combined in such a way that degenerate rotary dipole modes V " and V + are produced, with resonant frequency ⁇ 0 and rotation in opposite directions ( Figure 2c).
- connection of the two waveguides to the resonant cavity is also responsible for removing degeneration from dipole modes.
- the off state is obtained when the device is not subjected to the application of an external DC magnetic field ( Figure 4).
- a stationary dipole mode resulting from the combination of V 1 modes is excited in the resonant cavity.
- the resulting mode has nodes aligned with the device's output waveguide, preventing signal transfer from input to output.
- the transmission curves in the two operating states are shown in Figure 5.
- the operating bandwidth at the levels of -2 dB of the insertion loss curve (transmission coefficient in on state) and -1 5 dB of isolation curve (transmission coefficient in the off state) is 146 GHz.
- the present invention relates to a compact optical key based on a 60 degree bending two-dimensional photonic crystal. It is basically intended to control the propagation of an electromagnetic signal along an optical communications channel, allowing or blocking its passage (keying function).
- switches are used in optical systems. They have two operating states, namely, on state, where the transmission of an electromagnetic signal along the device, with low insertion losses between the input and output ports of the device; off state, where signal propagation is prevented, with high isolation between input and output ports.
- the transition between these two operating states is determined by modifying some parameter characteristic of the photonic crystal on which the switch is based, due to the adjustment of some external variable to the structure.
- the variation in the intensity of an optical control signal is responsible for the change in refractive index of the material on which the switch is based.
- This phenomenon known as the Kerr effect.
- the switch is constructed on a two-dimensional photonic crystal with triangular mesh of holes, filled with air and made of material with nonlinear properties in question. Defects that give rise to waveguides and resonant cavity are clearly inserted into the crystal.
- the switch described in US2005249455 is based on an optical waveguide, whose core is formed by a two-dimensional photonic crystal in which two or more materials, with different refractive indices, are periodically distributed. in space.
- the injection of a light signal or an electric current between electrodes present in the structure is responsible for modifying the refractive index of the materials that make up the crystal and, consequently, for the state in which the switch operates (on or off).
- a switching element is inserted (transition between on and off states).
- This element is based on a two-dimensional photonic crystal and a pair of electrodes.
- the transition between device operating states is controlled by the value of an electrical voltage applied between the two electrodes. Depending on the value of the applied voltage, the device may either allow (on state) or interrupt (off state) the passage of an electromagnetic signal from the input to the output waveguide.
- the switch to which JP2006184618 refers is based on a two-dimensional photonic crystal in which the refractive index of its constituent materials varies with temperature. Device temperature control is responsible for setting the state the switch is in (on or off).
- the present invention is based on a two-dimensional photonic crystal composed of a triangular network of holes made of a magneto-optical material whose electrical permittivity depends on the intensity of an applied external DC magnetic field.
- the switch When the material is unmagnetized (external magnetic field equals 0), the switch operates in the off state. On the other hand, when it is magnetized (external magnetic field equal to H 0 ), the device operates in the on state.
- photonic crystal-based waveguides overcomes this difficulty because, with the correct choice of the topology of curves incorporated into them, they can promote the change of propagation direction of an electromagnetic signal. This is because the principle of operation of these guides is not based on the principle of total internal reflection, as in the case of optical fibers, but on the existence of the photonic band gap.
- the electromagnetic signal is confined within the linear defect that originated the guide and is prevented from propagating outside the guide due to the photonic band gap associated with the periodic structure surrounding it.
- the device presented here incorporates in its structure a 60 degree bend, which provides greater flexibility in the design of integrated optical circuits. In addition, it has small dimensions, which favors the increase in integration density.
- the switch in question operates with uniform magnetization, which simplifies the development of the magnetization circuit, since a simple electromagnet can be used to perform this function.
- the magnitude of the generated magnetic field is delivers! to the intensity of an electric current running through the electromagnet.
- the device is based on a two-dimensional photonic crystal composed of a triangular network of holes inserted into a magneto-optical material.
- this crystal two types of defects are inserted, namely:
- the key can be in two states, namely:
- the device has the following characteristics: [025] a) The crystal constant of (a) is 480 nanometers;
- ⁇ is the electrical permittivity of the material (in Farads per meter);
- ⁇ 0 is the electrical permittivity of free space (in Farads per meter); [038] c) ⁇ is the magnetic permeability of the material (in Henrys per meter);
- ⁇ 0 is the free space magnetic permeability (in Henrys per meter);
- gr is a parameter dependent on the intensity of the applied external DC magnetic field.
- Figures 1a and 1b show schematically the switch operating in the modes on and off respectively.
- Figures 2a and 2b show the eigenvectors Vi and V 2 , which correspond to two of the six dipole modes that exist in the unmagnetized resonator, with resonant frequency ⁇ 0 .
- Figure 2c shows two rotating modes V and V + of the unmagnetized resonator, which rotate in opposite directions and have the same resonant frequency ⁇ 0 .
- Figure 2d shows two rotating modes V m + and M m of the magnetized resonator, which rotate in opposite directions and have resonant frequencies re ⁇ " , respectively.
- Figure 3 shows a section of the device operating in the on state.
- Figure 4 shows a section of the device operating in the off state.
- Figure 5 shows the frequency response of the switch operating in the on and off states.
- an electromagnetic signal applied to the input guide 101 excites a rotating dipole mode 103 in the magnetoptic resonator. instead, it causes the signal present at the input to be transferred to the output guide 102, with low insertion losses, corresponding to the on state of the device.
- the value of parameter g, which is proportional to the magnitude of H 0 is 0.3.
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Integrated Circuits (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017513281A JP6716543B2 (ja) | 2014-05-22 | 2015-05-22 | 120度の曲げを含む2次元フォトニック結晶に基づいたコンパクトな光スイッチ |
US15/313,133 US10331009B2 (en) | 2014-05-22 | 2015-05-22 | Compact optical key based on a two-dimensional photonic crystal with 120 degree folding |
KR1020167035538A KR20180006266A (ko) | 2014-05-22 | 2015-06-08 | 120도 벤딩을 갖는 2차원 광 결정 기반의 소형 광 스위치 |
Applications Claiming Priority (2)
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BRBR102014016549-5 | 2014-05-22 | ||
BR102014016549-5A BR102014016549B1 (pt) | 2014-05-22 | 2014-05-22 | Chave óptica compacta baseada em um cristal fotônico bidimensional com dobramento de 120 graus |
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WO2015176150A1 true WO2015176150A1 (pt) | 2015-11-26 |
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PCT/BR2015/050061 WO2015176150A1 (pt) | 2014-05-22 | 2015-05-22 | Chave óptica compacta baseada em um cristal fotônico bidimensional com dobramento de 120 graus |
Country Status (5)
Country | Link |
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US (1) | US10331009B2 (pt) |
JP (1) | JP6716543B2 (pt) |
KR (1) | KR20180006266A (pt) |
BR (1) | BR102014016549B1 (pt) |
WO (1) | WO2015176150A1 (pt) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114921715A (zh) * | 2022-04-25 | 2022-08-19 | 华南理工大学 | 一种实现任意形状微波拓扑环形腔的方法 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR102014016547B1 (pt) * | 2014-05-22 | 2022-05-31 | Universidade Federal Do Pará | Chave óptica compacta baseada em um cristal fotônico bidimensional com dobramento de 60 graus |
BR102014025075B1 (pt) * | 2014-10-06 | 2021-01-12 | Universidade Federal Do Para | dispositivo óptico multifuncional baseado em um cristal fotônico bidimensional e em um ressoador magneto-óptico |
US11042056B2 (en) | 2019-03-26 | 2021-06-22 | United States Of America As Represented By The Secretary Of The Air Force | Photonic crystal-enabled display stitching |
US11143860B1 (en) | 2019-04-29 | 2021-10-12 | United States Of America As Represented By The Secretary Of The Air Force | Photonic crystal-based optical steering |
US11372134B2 (en) | 2019-06-04 | 2022-06-28 | United States Of America As Represented By The Secretary Of The Air Force | Peel-and-adhere photonic crystal |
US11353627B2 (en) | 2019-07-31 | 2022-06-07 | United States Of America As Represented By The Secretary Of The Air Force | Compact star tracker with photonic crystal pointing |
US11782264B1 (en) | 2019-10-01 | 2023-10-10 | United States Of America As Represented By The Secretary Of The Air Force | Optical flight motion simulator target axes |
US11718029B2 (en) | 2021-01-07 | 2023-08-08 | United States Of America As Represented By The Secretary Of The Air Force | Three-dimensional printer resin curing system using Risley prisms |
US11640043B2 (en) | 2021-01-07 | 2023-05-02 | United States Of America As Represented By The Secretary Of The Air Force | Optical focus control based on Risley-like elements |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003215646A (ja) * | 2002-01-21 | 2003-07-30 | Matsushita Electric Works Ltd | 光スイッチ |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002303836A (ja) | 2001-04-04 | 2002-10-18 | Nec Corp | フォトニック結晶構造を有する光スイッチ |
JP3721181B2 (ja) * | 2003-08-29 | 2005-11-30 | 独立行政法人科学技術振興機構 | 電磁波周波数フィルタ |
JP2006184618A (ja) | 2004-12-28 | 2006-07-13 | Kyoto Univ | 2次元フォトニック結晶及びそれを用いた光機能素子 |
US20080267557A1 (en) * | 2005-12-29 | 2008-10-30 | Zheng Wang | Integrated Magneto-Optical Devices for Uni-Directional Optical Resonator Systems |
CN101571657B (zh) | 2009-06-10 | 2010-09-01 | 南京邮电大学 | 一种光子晶体全光开关 |
CN101726873B (zh) * | 2009-12-14 | 2012-08-08 | 深圳大学 | 光子晶体三端口环行器 |
CN101788727B (zh) * | 2009-12-14 | 2011-11-09 | 深圳大学 | 基于磁光腔耦合的光子晶体四端口环行器 |
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2014
- 2014-05-22 BR BR102014016549-5A patent/BR102014016549B1/pt active IP Right Grant
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2015
- 2015-05-22 JP JP2017513281A patent/JP6716543B2/ja active Active
- 2015-05-22 US US15/313,133 patent/US10331009B2/en active Active
- 2015-05-22 WO PCT/BR2015/050061 patent/WO2015176150A1/pt active Application Filing
- 2015-06-08 KR KR1020167035538A patent/KR20180006266A/ko not_active Application Discontinuation
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JP2003215646A (ja) * | 2002-01-21 | 2003-07-30 | Matsushita Electric Works Ltd | 光スイッチ |
Non-Patent Citations (1)
Title |
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VICTOR DMITRIEV ET AL., OPTICS LETTERS, vol. 38, 15 October 2013 (2013-10-15), pages 4040 - 4043, XP001584893 * |
Cited By (1)
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CN114921715A (zh) * | 2022-04-25 | 2022-08-19 | 华南理工大学 | 一种实现任意形状微波拓扑环形腔的方法 |
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BR102014016549B1 (pt) | 2021-10-13 |
KR20180006266A (ko) | 2018-01-17 |
JP2017531815A (ja) | 2017-10-26 |
US10331009B2 (en) | 2019-06-25 |
US20170123288A1 (en) | 2017-05-04 |
BR102014016549A2 (pt) | 2015-11-24 |
JP6716543B2 (ja) | 2020-07-08 |
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